Home / 79,309.32-109,443.06-43,492.68

Finding the Fourth Proportional to 79,309.32, 109,443.06 and 43,492.68

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Solution

The fourth proportional to 79,309.32, 109,443.06 and 43,492.68 is: 60,017.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,309.32 : 109,443.06 = 43,492.68 : x
  2. Step 2: Convert to fraction form
    79,309.32/109,443.06 = 43,492.68/x
  3. Step 3: Cross multiply
    79,309.32x = 109,443.06 × 43,492.68
  4. Step 4: Simplify right side
    79,309.32x = 4,759,971,986.80
  5. Step 5: Solve for x
    x = 4,759,971,986.80/79,309.32
  6. Step 6: Final answer
    x = 60,017.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.